Centrifugal machine.



HARALD BRODER EMIL FROSTfOF COPENHAGEN; DENMARK cEN'TnI'FUeAL MACHINE;

Specification of Letters Patent.

Patented Aug. 27, 907.

Application filed December 12, 1906. serial No- 347,570.

To all whom it may concern:

lle it known thatl, Hanan) Bnonnn EMIL Fnos'r, correspmnlout, subject of Denmark, residing at No. 3 Gerne gade, Copenhagen, in the Kingdom of Den- ;uark, have invented new and useful Improvements in Centrifugal Machines for Separating Liquids, of which the following is a specification.

This invention relates to a form of outlet channel for those centrifugal separators in which a funnel extending through the neck of the centrifugal drum is placed above the conical or funnel shaped plates; between the outer side of this tunnel and the wall of the drum or the wall of the drum cover the heavier liquid such as skim milk rises to the outlet openings, while the lighter liquid such ascream arrives at its outlet opening in the neck of the drum through the inner part of the funnel. In such centrifugal drums, it has already been proposed to let out the skim milk through broad horizontal slots in the neck of the drum, while the cream issues through an adjustable hollow screw, so that by adjust-' ing the screw the relation between the outflow of both fluids can be regulated it has been found however that the regulation is made'more difficult when these broad slots are used, and by the present invention the outlet openings are formed in such a way, that this difficulty is removed. This can be done by lengthening the neck of the funnel which fits tightly in the neck of the drum so that it extends a short distance beyond the said neck l'urlher from the axis of the drum and the outflow of mum thus regulated.

The invention is illustrated in the accompanying drawing in which i Figure 1 is a vertical sectionthrough the axis of the separator, and Fig. 2 is a horizontal section on the line X-Y in Fig. 1.

The centrifugal drum a has a. cover b with neck 0, a central pipe d and conical plates e. is a funnel f, the neck 1 of which is led through the neck I: of the drum cover and fits tight therein. In the neck (I one or more (in the drawings 3) channel shaped indentations h are made, through which the skim milk passes out over the neck of the drum cover. The neck of this funnel is closed at its upper end around the central pipe (I, and has at the top an outlet'for the cream closed by a screw i, the screw having a vertical eccentric outlet channel It, so that by turning the screw the outflow of cream can be regulated.

Having now particularly described and ascertained the nature of my said invention I declare, that what I.

claim is:

'1. The combination with a centrifugal drum having a cover provided with a' reduced neck, and a series of con ical plates arranged in the drum, of a tunnel arranged abovethe plates and having a projection fitting in said reduced neck; said projection having vertical channels formed in its outer wall and extending above and below the reduced neck of the cover.

In a"centrlfugul separator the combination with the drum having a cover provided with a reduced neck, and a series of conical plates arranged in the drum, of a funnel arranged above the plates and projecting through said neck and vhaving verticnl, channels formed in the outer wall of its projecting part and extending above and below the reduced neck of the cover for the discharge of the skim milk, and a vertical screw arranged inthe upper end of the tunnel and provided with a-vertical eccentric Above the plates e 

